Browsing Oregon Fish Commission Contributions by Subject "Chinook salmon -- Columbia River"

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An application of the control chart method to the analysis of fisheries data

Rich, Willis H. (Willis Horton), 1885-1972; Oregon. Fish Commission ([Salem, Or. : State Printing Dept.], 1943)

In a paper now in press as a Bulletin of the U. S. Fish and Wildlife Services the writer has discussed the downward trend of the catch of Columbia River Chinook salmon since 1920 and has stated that the decline is doubtl ...